EP 2975763 A1 20160120 - CLASS D POWER AMPLIFIER
Title (en)
CLASS D POWER AMPLIFIER
Title (de)
KLASSE D LEISTUNGSVERSTÄRKER
Title (fr)
AMPLIFICATEUR DE PUISSANCE DE CLASSE D
Publication
Application
Priority
JP 2014148293 A 20140718
Abstract (en)
A power amplifier includes a class D amplification section and a load current feedback circuit. The class D amplification section includes an input section and a switching section serving as an output stage and switched depending on a signal input to the input section, and outputs current from a power source to a load via the switching section. The load current feedback circuit negatively feeds back the current flowing in the load to the input section of the class D amplification section.
IPC 8 full level
H03F 1/34 (2006.01); H03F 3/217 (2006.01); H03F 3/45 (2006.01)
CPC (source: EP US)
H03F 1/342 (2013.01 - EP US); H03F 3/185 (2013.01 - EP US); H03F 3/2171 (2013.01 - EP US); H03F 3/45475 (2013.01 - EP US); H03F 2200/03 (2013.01 - EP US); H03F 2200/129 (2013.01 - EP US); H03F 2200/144 (2013.01 - EP US); H03F 2200/153 (2013.01 - EP US); H03F 2200/171 (2013.01 - EP US); H03F 2200/301 (2013.01 - EP US); H03F 2200/351 (2013.01 - EP US); H03F 2200/391 (2013.01 - EP US); H03F 2200/462 (2013.01 - EP US); H03F 2200/546 (2013.01 - EP US); H03F 2200/78 (2013.01 - EP US); H03F 2203/45521 (2013.01 - EP US); H03F 2203/45522 (2013.01 - EP US); H03F 2203/45526 (2013.01 - EP US); H03F 2203/45528 (2013.01 - EP US)
Citation (applicant)
WO 03090343 A2 20031030 - KONINKL PHILIPS ELECTRONICS NV [NL], et al
Citation (search report)
- [X] US 2013136278 A1 20130530 - QUILTER PATRICK H [US]
- [X] US 7924091 B2 20110412 - HORBACH ULRICH [US], et al
- [X] US 8224009 B2 20120717 - DELPAPA KENNETH B [US], et al
- [I] US 2005134374 A1 20050623 - HENCH JOHN J [US], et al
- [A] US 5068903 A 19911126 - WALKER MICHAEL [DE]
- [AD] WO 03090343 A2 20031030 - KONINKL PHILIPS ELECTRONICS NV [NL], et al
- [X] JEONG J H ET AL: "A CLASS D SWITCHING POWER AMPLIFIER WITH HIGH EFFICIENCY AND WIDE BANDWIDTH BY DUAL FEEDBACK LOOPS", INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS - DIGEST OF TECHNICAL PAPERS. ROSEMONT, JUNE 7 - 9 1995; [INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS - DIGEST OF TECHNICAL PAPERS], NEW YORK, IEEE, US, vol. CONF. 14, 7 June 1995 (1995-06-07), pages 428/429, XP000547882, ISBN: 978-0-7803-2141-0
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2975763 A1 20160120; EP 2975763 B1 20191211; CN 105281684 A 20160127; CN 105281684 B 20180619; JP 2016025475 A 20160208; JP 6210027 B2 20171011; US 2016020735 A1 20160121; US 9647614 B2 20170509
DOCDB simple family (application)
EP 15177394 A 20150717; CN 201510422661 A 20150717; JP 2014148293 A 20140718; US 201514802412 A 20150717